CN107923276A - Valve transmission device, the internal combustion engine with valve transmission device and the method for running valve transmission device - Google Patents
Valve transmission device, the internal combustion engine with valve transmission device and the method for running valve transmission device Download PDFInfo
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- CN107923276A CN107923276A CN201680043762.7A CN201680043762A CN107923276A CN 107923276 A CN107923276 A CN 107923276A CN 201680043762 A CN201680043762 A CN 201680043762A CN 107923276 A CN107923276 A CN 107923276A
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- Prior art keywords
- valve
- transmission device
- actuation unit
- camshaft
- trigger element
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L2001/0471—Assembled camshafts
- F01L2001/0473—Composite camshafts, e.g. with cams or cam sleeve being able to move relative to the inner camshaft or a cam adjusting rod
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The present invention relates to a kind of valve transmission device (10),The valve transmission device has at least one camshaft (11),The valve transmission device, which has, to be used to manipulate at least one first scavenging air valve (38,39) the first valve actuation unit (18),The first valve actuation unit is arranged for being converted into being used to be allocated at least one first scavenging air valve (38 by the rotary motion of the camshaft (11),39) two different cam followers (40,41) power switched between,And the valve transmission device has the second valve actuation unit (19) for being used for manipulating at least one second scavenging air valve,The second valve actuation unit is arranged for the rotary motion of the camshaft (11) being converted into for being allocated to the power switched between two different cam followers of at least one second scavenging air valve,Wherein described first valve actuation unit (18) has at least one the first trigger element (21 being connected in a relatively unrotatable manner with the camshaft (11),22),The second valve actuation unit (19) has at least one the second trigger element (23 being connected in a relatively unrotatable manner with the camshaft (11),24),Wherein described trigger element (21,22,23,24) intercouple,The invention further relates to a kind of internal combustion engine with valve transmission device (10) of the invention and a kind of method for the valve transmission device (10) for being used to run the present invention,Wherein manipulate the trigger element (21 at the same time,22,23,24),And the trigger element (21,22,23,24) configured valve actuation unit (18 is triggered,19) in the cam follower (40,41) the successive switching between.
Description
Technical field
The present invention relates to a kind of valve transmission device, a kind of internal combustion engine and one kind with valve transmission device to be used to run valve
The method of transmission device.
Background technology
10 2,013 19 000 A1 of DE had revealed that a kind of valve transmission device with camshaft, the valve transmission device
With the first valve actuation unit for manipulating two the first scavenging air valves, it is arranged for changing the rotary motion of camshaft
Into the power for switching between two different cam followers for being allocated to the first scavenging air valve, and the valve transmission device
With the second valve actuation unit for manipulating two the second scavenging air valves, it is arranged for changing the rotary motion of camshaft
Into the power for switching between two different cam followers for being allocated to the second scavenging air valve, wherein the first valve actuation unit
With at least one trigger element with cam axis connection in a relatively unrotatable manner, and the second valve actuation unit has extremely
Lack a trigger element with cam axis connection in a relatively unrotatable manner.
The content of the invention
The purpose of the present invention particular in that, there is provided a kind of relatively low and of low cost valve transmission device of mechanical complexity.
The purpose by the present invention designing scheme according to claim 1 and the present invention according to claim 10
Method realize.The improvement project of the present invention refers to dependent claims.
The present invention is based on a kind of valve transmission device, and the valve transmission device has at least one camshaft, the valve transmission
Device has the first valve actuation unit for being used for manipulating at least one first scavenging air valve, and use is set in the first valve actuation unit
It is converted into by the rotary motion of the camshaft for different in be allocated at least one first scavenging air valve two
The power switched between cam follower, and the valve transmission device has for manipulating the second of at least one second scavenging air valve
Valve actuation unit, the second valve actuation unit are arranged for being converted into being used to configure by the rotary motion of the camshaft
To the power switched between two different cam followers of at least one second scavenging air valve, wherein first valve manipulates
Unit has at least one trigger element with the cam axis connection in a relatively unrotatable manner, and second valve manipulates
Unit has at least one trigger element with the cam axis connection in a relatively unrotatable manner.
The present invention proposes that the trigger element intercouples.It so just can be at least two cylinders realization pair of internal combustion engine
The co- controlling of the trigger element.Shared component can be thereby used to control trigger element, and reduce number of components.Energy
Enough realize the relatively low and of low cost valve transmission device of mechanical complexity." being set " particularly should refer to ad hoc build, design,
It is equipped with and/or arranges.Thus, " cam follower ", which should refer to, is arranged for camshaft with the cam contact of camshaft
Rotary motion is converted into the element of the linear motion for manipulating scavenging air valve.Thus, " trigger element ", which should refer to, is set use
In the element of mechanical switch process of the trigger valve actuation unit between two cam followers.In trigger process, triggering member
Part is especially into a state, switching device of the trigger element by the rotation of camshaft to valve actuation unit in this state
Manipulated, which causes valve actuation unit to switch between two cam followers, wherein passing through trigger element
After triggering, the manipulation time point of the switching device of valve actuation unit is predetermined by the Angle Position of camshaft.
It is further proposed that the trigger element is arranged in a manner of mutually having certain phase shift.So just can be with difference
The ignition order matching of cylinder.The trigger element can be particularly installed on a shared bearing carrier, so that with
Relatively low complexity realizes the coupling of trigger element.Thus, " phase shift " should refer to trigger element opposing cam axis and be arranged in not
In same angular range.
It is further proposed that the valve transmission device have in a manner of relatively unrotatable but be axially movable with it is described
The changer lever of cam axis connection, the trigger element are coupled with the changer lever.So just can be simply by the rotation of camshaft
Movement and torque are used to provide steering force, and trigger element triggers the switching of cam follower by the steering force.It is in addition, logical
Simple motion switch for controlling trigger element can be realized by crossing the axial movement of the changer lever.
It is further proposed that the changer lever is directed in the camshaft.It just can so realize the valve transmission dress
The less structure space consumption put.It is furthermore possible to be connected to for the actuator for manipulating changer lever in a manner of simple in structure
On position with larger structure space.
It is further proposed that the valve transmission device includes the 3rd valve actuation unit with least one trigger element,
At least one trigger element is coupled with the trigger element.It so just can further reduce the component of the valve transmission device
Number.It can realize the relatively low and of low cost valve transmission device of mechanical complexity.It is furthermore possible to realize a valve transmission device, its
It can be particularly advantageously applied in following internal combustion engine：The six-in-line formula that the internal combustion engine has cylinder is laid out, wherein every three
A cylinder is combined and worked under same working method.
It is further proposed that the valve transmission device includes another valve actuation unit, it has at least another with cannot phase
The trigger element of mode and the cam axis connection to rotation, at least another trigger element and the first valve actuation unit
At least one trigger element and at least one trigger element decoupling with the second valve actuation unit.So just can be real
Now to the independent control of another valve actuation unit.
It is further proposed that the valve transmission device include it is another in a manner of relatively unrotatable but be axially movable with
The changer lever of the cam axis connection, the other trigger element are coupled with the changer lever.So just can simply will be convex
The rotary motion and torque of wheel shaft are used to provide steering force, and the trigger element triggers cam follower by the steering force
Switching.In addition, the simple switching for controlling the trigger element can be realized by the axial movement of the changer lever
Movement.
The invention further relates to a kind of internal combustion engine with valve transmission device of the invention.So just can be for internal combustion engine
In the valve actuation unit of at least two cylinders in order between cam follower switching realize the co- controlling of trigger element.Thereby
Shared component can be used to control trigger element, and reduce number of components.It can realize that mechanical complexity is relatively low and cost
Cheap valve transmission device.
It is further proposed that the internal combustion engine has the in-line arrangement layout of six cylinders.So, based on the array
Formula is laid out, and can be switched in the valve actuation unit at least two cylinders of internal combustion engine between cam follower special
The co- controlling of trigger element is not realized simply.In the in-line arrangement layout of six cylinders, every three cylinders are particularly always
Work under identical working status so that in the case of using the in-line arrangement layout of six cylinders, be particularly driven in valve
In the case that device has the 3rd trigger element coupled with the trigger element, the valve transmission can be particularly advantageously run
Device.
The invention further relates to a kind of method for running valve transmission device, the valve transmission device has at least one convex
Wheel shaft, the valve transmission device have the first valve actuation unit for being used for manipulating at least one first scavenging air valve, first valve
Actuation unit is arranged for being converted into being used to change being allocated to described at least one first by the rotary motion of the camshaft
The power switched between two different cam followers of air valve, and the valve transmission device is at least one with being used to manipulate
Second valve actuation unit of the second scavenging air valve, the second valve actuation unit are arranged for the rotary motion of the camshaft
It is converted into for being allocated to the power switched between two different cam followers of at least one second scavenging air valve, its
Described in the first valve actuation unit have it is at least one in a relatively unrotatable manner with the triggering of cam axis connection member
Part, the second valve actuation unit have at least one triggering member with the cam axis connection in a relatively unrotatable manner
Part.
The present invention proposes, while manipulates the trigger element, and the trigger element triggers configured valve actuation unit
Successive switching between the cam follower.Just it can so be realized at least two cylinders of internal combustion engine to the triggering member
The co- controlling of part.Shared component can be thereby used to control trigger element, and reduce number of components.It can realize machinery
The relatively low and of low cost valve transmission device of complexity.
Brief description of the drawings
More advantages refer to the following drawings explanation.Attached drawing shows one embodiment of the present of invention.Attached drawing, brief description of the drawings and power
Sharp claim includes substantial amounts of combinations of features.Those skilled in the art can also individually carry out these features in line with the purpose
Investigate and summed up into other rational combinations of features.Wherein：
Fig. 1 is the exploded view of valve transmission device,
Fig. 2 is the detail drawing of the first valve actuation unit,
Fig. 3 is the sectional view for the valve actuation unit for switching to ignition mode, and
Fig. 4 is the sectional view for the valve actuation unit for switching to braking mode.
Embodiment
Fig. 1 to Fig. 4 shows the valve transmission device 10 with camshaft 11.Valve transmission device 10 is commercial car, such as loading
The component of the internal combustion engine of the non-shows in detail of car.The internal combustion engine is embodied as straight-six engine.Camshaft 11 includes cam
12、13、14、15、16、17、12'、13'、14'、15'、16、17'.Each two cam 12 and 13,14 and 15,16 and 17,12' with
13', 14' and 15', 16' and 17' form a cam set.Each cam set is allocated to a cylinder of internal combustion engine.The internal combustion
Machine is embodied as six-in-line formula engine.The cam set respectively includes the ignition cam of an ignition mode for being allocated to internal combustion engine
And the brake cam of a braking mode for being allocated to internal combustion engine.Wherein cam 12,14,16,12', 14', 16' are embodied as making
Moving cam, cam 13,15,17,13', 15', 17' are embodied as ignition cam.It is in ignition mode, the work done during compression in cylinder is special
It is not to be used to drive.In braking mode, the work done during compression in cylinder is used to brake.Camshaft 11 is set as admission cam
Axis.In an alternative designs scheme, the camshaft can also be set as exhaust cam shaft.In other designing schemes
In, the designing scheme of brake cam and ignition cam is replaced in, cam 12,14,16,12', 14', 16' can be configured to carry
For the ignition cam of different strokes of valve.
Valve transmission device 10 has the first valve actuation unit 18 for being used for manipulating two the first scavenging air valves 38,39 (refering to figure
2).The two first scavenging air valves 38,39 intercouple.First valve actuation unit 18 tapped in braking mode be embodied as braking it is convex
The cam 12 of wheel, and tap is embodied as the cam 13 of ignition cam in ignition mode.When tapping cam 12 or cam 13,
Since the first scavenging air valve 38,39 intercouples, the first valve actuation unit 18 manipulates these first scavenging air valves together.As
Alternative solution, the first valve actuation unit 18 can also be arranged for only manipulating an independent scavenging air valve 38, or for manipulating
More than two first scavenging air valves 38,39.First valve actuation unit 18 includes be allocated to two the first scavenging air valves 38,39 two
Different cam followers 40,41, and be arranged for being converted into being used to be allocated to two by the rotary motion of camshaft 11
The power switched between the different cam followers 40,41 of two of a first scavenging air valve 38,39.
Cam follower 40 is arranged for the cam 12 that tap is embodied as brake cam, and use is set in cam follower 41
The cam 13 of ignition cam is embodied as in tap.In braking mode, since cam 12 is tapped by cam follower 40, valve manipulates
Unit 18 manipulates scavenging air valve 38,39 in running under braking, and cam 13 under cam follower 41 through.In braking mode,
Since cam 13 is tapped by cam follower 41, valve actuation unit 18 manipulates scavenging air valve 38,39 in running after firing, and cam
12 under cam follower 40 through.In running after firing, bent axle is driven because of the combustion process in cylinder, and is being braked
In operation, bent axle then because the compressed air in cylinder not plus the compression that utilizes be braked.Wherein ignition mode and braking mould
Difference lies in the control time for the first scavenging air valve 38,39 for formula.
First valve actuation unit 18 has the first trigger element being connected in a relatively unrotatable manner with camshaft 11
21.Trigger element 21 is embodied as switching cam, it is partially positioned in camshaft 11 and stretches out camshaft 11.Trigger element 21
With the Internal periphery on herringbone side wall (Pfeilflanken), it is by rounding and is arranged for precise match
Mode makes trigger element 21 be docked on camshaft 11.Camshaft 11 has elongated hole 35, and trigger element 21 passes through the elongated hole
Stretch out.Elongated hole 35 is manufactured with laser cutting method.As an alternative, elongated hole 35 can also be by other methods, example
As pressing or milling method manufacture.Trigger element 21 be arranged for trigger valve actuation unit 18 cam follower 40,41 it
Between along the first switching direction switching.First valve actuation unit 18 has to be connected with camshaft 11 in a relatively unrotatable manner
The second trigger element 22, it is arranged for trigger valve actuation unit 18 between cam follower 40,41 along with described the
The switching of the second opposite switching direction of one switching direction.Second trigger element 22 is not illustrated in institute from another in camshaft 11
Show that the elongated hole in view stretches out.First trigger element 21 and the second trigger element 22 cloth in a manner of the certain angle that mutually staggers
Put.
Valve actuation unit 18 has two Rocker arm 4s 2,43, be implemented as roller rocker arms and with cam follower 40,
41.In order to switch between cam follower 40,41, valve actuation unit 18 has rocking arm supporting arrangement, it, which has, is allocated to a little
The first end position of fiery pattern and the second end position for being allocated to braking mode.In first end position, it is set
Cam follower 41 for the ignition mode of scavenging air valve 38,39 always contacts (Fig. 3) with being embodied as the cam 13 of ignition cam.
The cam follower 40 for being arranged for the braking mode of scavenging air valve 38,39 is then lifted from the cam 12 for being embodied as brake cam,
So that cam 12 without make land used under cam follower 40 through.On the contrary, in second end position, it is arranged for taking a breath
The cam follower 40 of the braking mode of valve 38,39 is always contacted with being embodied as the cam 12 of brake cam, and is arranged for
The cam follower 41 of the ignition mode of scavenging air valve 38,39 is then lifted from the cam 13 for being embodied as ignition cam so that cam 13
Without making land used under cam follower 41 through (Fig. 4).
The rocking arm supporting arrangement has supporting member 53, and Rocker arm 42,43 is supported with the supporting member.Supporting member
53 itself are carry in a manner of swingable.Supporting member 53 is embodied as the form of U-clamp, and wherein Rocker arm 42,43 is connected to branch
Hold on the part for being in substantially parallel relationship to camshaft 11 and extending of element 53.The rocking arm supporting arrangement is arranged for by camshaft
11 rotary motion switches over.If supporting member 53 switches to first end position, then is manipulating the mistake of scavenging air valve 38,39
Cheng Zhong, the cam 13 by being embodied as ignition cam substantially act on one towards second end position on supporting member 53
Power (Fig. 3).If supporting member 53 switches to second end position, then during scavenging air valve 38,39 is manipulated, passes through implementation
The power (Fig. 4) towards first end position is substantially acted on supporting member 53 for the cam 12 of brake cam.
Act on supporting member 53 for the power that switches between the two terminal positions by ignition mode and
The steering force applied in braking mode by camshaft 11 to scavenging air valve 38,39 obtains.Supporting member 53 is to this steering force
It is supported.Rocker arm 42,43 has the rocking arm axis mutually to stagger, and Rocker arm 42,43 is around the rocking arm axis with respect to supporting member
53 swingably carry.Since rocking arm axis mutually staggers, depending on by Rocker arm 42, which of 43 manipulate scavenging air valve 38,
Depending on 39, different power acts on supporting member 53.Supporting member 53 has supporting axis, it is arranged in two according to effect and shakes
Between arm axle line.If manipulating one of Rocker arm 42, produce one by the steering force of this Rocker arm 42 and act on supporting member
The torque of part 53, it is directed toward and when manipulating another Rocker arm 43 by another Rocker arm 43 on the supporting axis of supporting member 53
The opposite direction of torque for acting on supporting member 53 that produces of steering force.
In order to which the rocking arm supporting arrangement is fixed, valve actuation unit 18 has the snap fit element 44 of load on spring,
It is arranged for rocking arm supporting arrangement being fixed in described two terminal positions.Snap fit element 44 is with can opposite supporting
The mode that element 53 is axially moved carries.Valve actuation unit 18 has spring element 45, it is arranged in supporting member 53 and card
Between lock co-operating member 44.
Connected to be acted on snap fit element 44, valve actuation unit 18 has detent profile element 46, snap fit
Element 44 is supported on the detent profile element.It is connected to establish with the shape sealed formula of snap fit element 44, clamping lock
Contoured component 46 has detent profile, which includes two recesses 48,49 between two backstops 47,50.
Protuberance 52 is equipped between the two recesses 48,49.Detent profile element 46 has supporting axis 51, and protuberance 52 forms described
Supporting axis.First recess 48 of the first end position being allocated in ignition mode positioned at the first backstop 47 and protuberance 52 it
Between.Second recess 49 of the second end position being allocated in braking mode is between the second backstop 50 and protuberance 52.It is recessed
Portion 48,49 defines two and is caught in position, is caught at these in position, and snap fit element 44 is with detent profile element 46 with shape
Sealed mode is connected.
The oscillating motion of supporting member 53 is any limitation as by two mechanical stops 47,50, these backstops define the rocking arm
Two terminal positions of supporting arrangement.Enter in supporting member 53 from the second end position in braking mode in ignition mode
In the oscillating motion of first end position, backstop 47,50 limits the oscillating motion of supporting member 53, and concrete mode is backstop 50
It is resisted against on supporting member 53 and backstop 47 is resisted against on snap fit element 44.Correspondingly, 47,50 pairs of supporting members of backstop
The oscillating motion for the second end position that part 53 enters in braking mode from the first end position in ignition mode is any limitation as,
Concrete mode is that backstop 47 is now resisted against on supporting member 53 and backstop 50 is resisted against on snap fit element 44.Snap fit
Element 44 is connected with supporting member 53 in Motion Technology.Enter another end from one of terminal position in supporting member 53
In the motion process of position, snap fit element 44 crosses protuberance 52 from one of recess 48,49 and moves to another recess
49、48.In the terminal position, snap fit element 44 resists the manipulation in scavenging air valve 38,39 with detent profile element 46
During the torque worked supporting member 53 is fixed.In this case, snap fit element 44 and supporting member are supported on
The torque that the spring force that spring element 45 between 53 is provided is enough to obtain the steering force by scavenging air valve 38,39 is supported on prominent
Go out in portion 52 so that snap fit element 44 will not be from the corresponding another recess 49,48 of a change of recess 48,49.
The detent profile element 46 movingly supported can be allocated to ignition mode (Fig. 3) first be caught in position with
It is allocated to the second of braking mode (Fig. 4) and is caught between position and swings.First in detent profile element 46 is caught in position, branch
Hold element 53 to be located in its first end position in ignition mode, wherein snap fit element 44 is coupled to the clamping lock wheel
The first wide recess 48.Second in detent profile element 46 is caught in position, and supporting member 53 is located at it in braking mode
Second end position in, wherein snap fit element 44 is coupled to the second recess 49 of detent profile.Position is caught in described
In, being supported in the steering force for scavenging air valve 38,39 by supporting member 53 in the recess 48,49 of detent profile element 46
The imported recess of the institute of snap fit element 44 forms global minimum respectively for snap fit element 44 when on camshaft 11.
Detent profile element 46 has centre position, is implemented as the two centers being caught between position.If make detent profile
Element 46 swings to the center, then snap fit element 44 moves in the detent profile.In this case, clamping lock
Co-operating member 44 is moved on protuberance 52 in detent profile from corresponding recess 48,49.Since detent profile element 46 is same
When swing, therefore the centre position formed a unstable position.
It is switched to depending on which is caught in position depending on detent profile element 46, when manipulating scavenging air valve 38,39 next time, is used for
The supporting member 53 of Rocker arm 42,43 switches to the terminal position that position correspondence is caught in this.Ignition mode and braking mode it
Between switch over, concrete mode another is caught in position to make detent profile element 46 from one of them be caught in position and swing to.It is logical
Cross trigger element 21 and cause swing.Detent profile element 46 has towards the side of snap fit element 44, it forms the clamping lock
Profile, and with towards the side of camshaft 11, it forms the manipulation profile for being used for swinging by the torque of camshaft 11.
The manipulation profile has two tracks, it mutually staggers along the rotation axis of camshaft 11.Depending on trigger element 21,
Which switching position 22 switch to depending on, and the first trigger element 21 of the first valve actuation unit 18, which acts on, manipulates profile wherein
On one track, or the second trigger element 22 of the first valve actuation unit 18 is acted on another track for manipulating profile.This
A little tracks are configured to inclined plane on rotary motion of the trigger element 21,22 around the rotation axis of camshaft 11.Clamping lock wheel
The manipulation profile of wide element 46 is arranged for camshaft 11 acting on the first trigger element 21 or the second trigger element 22
Torque be converted into acting on the torque of detent profile element 46 so that detent profile element 46 is put around its supporting axis 51
It is dynamic.Trigger element 21,22 is arranged in the case of the manipulation profile effect connection with detent profile element 46, first
Detent profile element 46 is caught in position from the first of ignition mode and switches to the centre position in switching position.In this respect
Under, the first trigger element 21 stretches into the one of track for manipulating profile.In the second switching position, detent profile element 46 from
The second of braking mode is caught in position and switches to centre position.In this case, the second trigger element 22, which moves into, manipulates profile
Another track.That is, trigger element 21,22 respectively is only arranged for making detent profile element 46 switch to centre position.When by
What the rotation and torque of camshaft 11 obtained acts on the steering force of scavenging air valve 38,39 when manipulating scavenging air valve 38,39 next time
When being supported on by supporting member 53 on camshaft 11, snap fit element 44 is caught in position from centre position importing is another.
Valve transmission device 10 has the second valve actuation unit 19 for being used for manipulating two the second scavenging air valves.Second valve manipulates single
Member 19 is using the embodiment similar to the first valve actuation unit 18.Second valve actuation unit 19 is equally arranged for cam
The rotary motion of axis 11 is converted into the power for switching between two different cam followers for being allocated to the second scavenging air valve.The
Two valve actuation units 19 are with the first trigger element 23 being connected in a relatively unrotatable manner with camshaft 11 and with not
The second trigger element 24 that the mode that can be relatively rotated is connected with camshaft 11.The two trigger elements 23,24 are arranged for
As two trigger elements 21,22 in the first valve actuation unit 18 identical function is realized for the second valve actuation unit 19.
Camshaft 11 has elongated hole 36, and the first trigger element 23 stretches out camshaft 11 by the elongated hole.
Trigger element 21,22,23,24 intercouples.Realized by coupling to being grasped while trigger element 21,22,23,24
It is vertical.In manipulation process, trigger element 21,22,23,24 is switched into the trigger element energy at the same time by axial motion switch
The position that the cam follower 40,41 of enough trigger valve operating elements 18,19 is switched.Really switching is to pass through camshaft 11
Rotary motion triggers in succession under the different Angle Positions of camshaft 11.
Trigger element 21,22,23,24 is arranged in a manner of mutually having certain phase shift.By the phase shift, cut in triggering
After changing, successive switching is caused with the ignition order of cylinder.Trigger element 23,24 has 240 degree of phase shifts (along camshaft with mutual
11 direction of rotation is depending on it) mode arrange, so as to fulfill the switching of the ignition order 1-5-3-6-2-4 according to internal combustion engine.
Valve transmission device 10 has the switching being connected in a manner of relatively unrotatable but be axially movable with camshaft 11
Bar 27, it is coupled with trigger element 21,22,23,24.By changer lever 27 so that trigger element 21,22,23,24 is jointly mobile.
Cause trigger element 21 between the first switching position and the second switching position back and forth by the axial motion switch of changer lever 27
Switching, thus, detent profile element 46 is switched to centre position by trigger element 21.By the same axial switching of changer lever 27
Movement is so that trigger element 21,22,23,24 toggles between the first switching position and the second switching position.
Changer lever 27 is directed in camshaft 11, and forms the interior axle of camshaft 11.Trigger element 21,22,23,24 with
Changer lever 27 is fixedly connected.Trigger element 21,22,23,24 is on the edge of elongated hole 35,36, by herringbone region
(Pfeilbereich) Internal periphery is resisted against on camshaft 11, and will be cut in a manner of relatively unrotatable but be axially movable
Bar 27 is changed to be connected with camshaft 11.In the installation process of valve transmission device 10, changer lever 27 is maintained in camshaft 11, with
Trigger element 21,22,23,24 is plugged to changer lever 27 by elongated hole 35,36 afterwards.Trigger element 21,22,23,24 is subsequent
Changer lever 27 is maintained on camshaft 11 in a manner of relatively unrotatable but be axially movable.
Valve transmission device 10 includes the slide element 28 with slide 29,30, it is used to produce the axial direction of changer lever 27 and cuts
Change movement.The straight line that slide element 28 is arranged for the rotary motion of camshaft 11 being converted into slide element 28 switches fortune
It is dynamic.Slide element 28 is arranged in side on changer lever 27, therefore the straight line motion switch of slide element 28 causes changer lever 27
Axial motion switch.Therefore, the axial motion switch of changer lever 27 is produced again by the rotary motion of camshaft 11.
Valve transmission device 10 includes the actuator 31 with two pin members 33,34, and the pin member is arranged for being coupled to
The straight line motion switch of slide element 28 is converted into slide 29,30 and by the rotary motion of camshaft 11.Actuator 31 includes
Lever 32, pin member 33,34 are arranged on the lever.Lever 32 is surrounded to be shared parallel to what the rotation axis of slide element 28 extended
Axis of oscillation supporting pin member 33,34, the rotation axis coincident of the rotation axis and camshaft 11.Pin member 33,34 is by lever 32
So supporting so that always only have one in pin member 33,34 and be coupled in slide 29, one of 30, and another pin member 34,33 is from cunning
Seat element 28 lifts.Pin member 33 is allocated to slide 29, and pin member 34 is allocated to slide 30.
Slide 29,30 respectively with one tilt extension the section with axial component --- the axial component is in pin
Slide element 28 is caused to move axially in part 33,34 engagement process --- and a circulating type region without axial component.Institute
The section with axial component for tilting and extending is stated only in a part for the angular zone of slide element 28 to extend.In the pin of engagement
When switching between part 33,34, the new insertion of pin member 33,34 section with axial component for tilting extension to be engaged, from
And cause the axial movement of slide element 28.After the section for tilting extension, pin member 33,34 enters slide 29,30
The circulating type region without axial component so that slide element 28 is fixed in an axial location.The inclination of slide 29,30 is prolonged
The region stretched is reversely with each other, so that the region causes axial movement in opposite direction.
In order to be switched between the pin member 33,34 of engagement, 31 electromagnetic type of actuator works and has a coil.It is if described
Coil is without feed, then pin member 33 is engaged in slide 29, and pin member 34 is lifted by lever 32 from slide element 28.By to line
Circle is fed, and pin member 33 is attracted to coil and is lifted from slide element 28.Thus, by lever 32 around shared swing
The rotation of axis so that pin member 34 is contacted with slide element 28 so that pin member 34 engages into slide 30, and slide element 28 with
And changer lever 27 is moved axially with slide element 28.After cancelling to the feed of coil, pin member 33 is pressed again because of spring force
To slide element 28 so that pin member 34 is lifted from slide element 28.Pin member 33 engages into slide 29, and is passing through slide 29
Inclination extension region when trigger the reverse axial movement of slide element 28.
Valve transmission device 10 has the 3rd valve actuation unit 20 for being used for manipulating two the 3rd scavenging air valves, it is used and first
The identical embodiment of valve actuation unit 18.3rd valve actuation unit 20 have two in a relatively unrotatable manner with cam
The trigger element 25,26 that axis 11 connects, it is arranged for triggering in two different cam drivens for being allocated to the second scavenging air valve
Switching between part.The trigger element 25,26 of 3rd valve actuation unit 20 is arranged for touching such as the first valve actuation unit 18
Hair element 21,22 realizes identical function for the 3rd valve actuation unit 20 like that.Camshaft 11 has elongated hole 37, trigger element
25 stretch out camshaft 11 by the elongated hole.
Trigger element 25 is equally arranged on the changer lever 27 being directed in camshaft 11.Therefore actuator 31 can be by
Changer lever 27 triggers the trigger element 21,22,23,24,25,26 for being used for three valve actuation units 18,19,20 at the same time.In this feelings
Under shape, once trigger element 21 because of the rotary motion of camshaft 11 and with the manipulation profile contacts of detent profile element 46, this touch
Cam follower 40,41 triggering of the hair element just for the first valve actuation unit 18 switches and makes during detent profile element 46 switches to
Between position.Then, once the cam 12,13 being tapped is against the cam follower 40,41 of corresponding tap, supporting member 53
Just overturn by the steering force for coming from 11 rotary motion of camshaft, and the cam follower 40,41 of tap is switched.So
Just the switching for the first valve actuation unit 18 is completed.It is identical for the triggering of valve actuation unit 19,20 by trigger element 23,25
Process.
The trigger element 25,26 of 3rd valve actuation unit 20 (is regarded with 120 degree of phase shift along the direction of rotation of camshaft 11
It) arrangement of the first trigger element 21,22 relatively.Therefore, according to the ignition order of cylinder the second valve actuation unit 19 switching
The preceding switching for implementing the 3rd valve actuation unit 20 between cam follower.
Valve transmission device 10 has another valve actuation unit 18' for being used for manipulating another two scavenging air valve, it is arranged for
By the rotary motion of camshaft 11 be converted into for be allocated to two of the other scavenging air valve different cam followers it
Between the power that switches, trigger element 21', the 22' being connected in a relatively unrotatable manner with camshaft 11 comprising another two.It is described
Trigger element 21', 22' that another two is connected with camshaft 11 in a relatively unrotatable manner be with the first trigger element 21,
22 and with the second trigger element 23,24 decoupling.Therefore another valve actuation unit 18' can manipulate list independently of the first valve
18 and second valve actuation unit 19 of member switches.Another valve actuation unit 18' is using identical with the first valve actuation unit 18
Embodiment.Trigger element 21' is stretched out by elongated hole 35' from camshaft 11.
Valve transmission device 10 has another to be connected in a manner of relatively unrotatable but be axially movable with camshaft 11
Changer lever 27', it is directed in camshaft 11 and is coupled with described other trigger element 21', 22'.Changer lever 27' is used
Similar to the embodiment of changer lever 27, and it is arranged for implementing axial motion switch, trigger element 21' passes through the axial direction
Motion switch toggles between the first switching position and the second switching position.By cutting between these switching positions
Change, the switching of the other valve actuation unit 18' is triggered in a manner of identical with the first valve actuation unit 18.Changer lever
27 are respectively provided with identical length with another changer lever 27', it is less than the half length of camshaft 11.
Valve transmission device 10 includes another actuator 31', and it includes the slide element 28' with two slides 29', 30'
And the lever 32' with two pin members 33', 34', the actuator are connected with another changer lever 27', and use with cut
Change the identical embodiment of the actuator 31 of the connection of bar 27.Actuator 31' is arranged for turning the rotary motion of camshaft 11
Change the straight line motion switch of slide element 28' into, it causes the axial motion switch of another changer lever 27', to pass through
Switching between the cam follower of trigger element 21' trigger valve actuation units 18'.
Valve transmission device 10 has another second valve actuation unit 19' for being used for manipulating the second scavenging air valve of another two and is used for
Another 3rd valve actuation unit 20' of the 3rd scavenging air valve of another two is manipulated, these valve actuation units are used similar to described another
The embodiment of valve actuation unit 18'.Second valve actuation unit 19' and another 3rd valve actuation unit 20' has with not
Trigger element 23', 24', 25', 26' that the mode that can be relatively rotated is connected with camshaft 11, it is arranged for as described another
Described first other trigger element 21', 22' of one first valve actuation unit 18' manipulates single for another second valve like that
First 19' and another 3rd valve actuation unit 20' realize identical function.Described other trigger element 23', 24' and institute
State another changer lever 27' couplings.
By valve actuation unit 18,19,20,18', 19', 20', valve transmission device 10 is arranged for having six cylinders
In-line arrangement layout internal combustion engine in.In principle, by matching valve actuation unit 18,19,20, the number of 18', 19', 20',
Valve transmission device 10 can be applied to the internal combustion engine that the in-line arrangement with four cylinders or eight cylinders is laid out.Valve transmission dress
Putting 10 can be used for six cylinder of V-type, wherein being respectively provided with three cylinders on the side wall of V-arrangement.
It is used to run the method for valve transmission device 10 a kind of, while manipulates trigger element 21,22,23,24,25,26.
Caused by the changer lever 27 equipped with trigger element 21,22,23,24,25,26 to trigger element 21,22,23,24,25,26
Manipulate at the same time.By actuator 31 and the slide element 28 for being converted into being connected with changer lever 27 by the rotary motion of camshaft 11
The slide element 28 of straight line motion switch is so that changer lever 27 is axially moveable.Trigger element 21,22,23,24,25,26 triggers
Successive switching of the valve actuation unit 18,19,20 configured between cam follower 40,41.By trigger element 21,22,
23rd, switching in succession is realized in the phase shift between 24,25,26, thereby makes trigger element 21,22,23,24,25,26 in the different time
It is coupled on point in the manipulation profile of the detent profile element 46 of corresponding valve actuation unit 18,19,20 and triggers switching.It is described
The ignition order of cylinder of the switching with being configured with valve actuation unit 18,19,20 matches in succession.It is used to run valve transmission dress described
Put in 10 method, while manipulate trigger element 21', 22', 23', 24', 25', 26' in an identical manner.Trigger element 21',
22', 23', 24', 25', 26' equally phases of triggering configured valve actuation unit 18', 19', the 20' between cam follower
After switching.
Reference numerals list
10 valve transmission devices
11 camshafts
12 cams
13 cams
14 cams
15 cams
16 cams
17 cams
18 valve actuation units
19 valve actuation units
20 valve actuation units
21 trigger elements
22 trigger elements
23 trigger elements
24 trigger elements
25 trigger elements
26 trigger elements
27 changer levers
28 slide elements
29 slides
30 slides
31 actuators
32 levers
33 pin members
34 pin members
35 elongated holes
36 elongated holes
37 elongated holes
38 scavenging air valves
39 scavenging air valves
40 cam followers
41 cam followers
42 rocking arms
43 rocking arms
44 snap fit elements
45 spring elements
46 detent profile elements
47 backstops
48 recesses
49 recesses
50 backstops
51 supporting axis
52 protuberances
53 supporting members
Claims (10)
1. a kind of valve transmission device, the valve transmission device has at least one camshaft (11), and the valve transmission device has
For manipulating the first valve actuation unit (18) of at least one first scavenging air valve (38,39), the first valve actuation unit is set
Put for by the rotary motion of the camshaft (11) be converted into be used for be allocated at least one first scavenging air valve (38,
39) power switched between two different cam followers (40,41), and the valve transmission device has for manipulating extremely
Second valve actuation unit (19) of few second scavenging air valve, the second valve actuation unit are arranged for the camshaft
(11) rotary motion is converted into for being allocated to two different cam followers of at least one second scavenging air valve
Between the power that switches, wherein the first valve actuation unit (18) have it is at least one in a relatively unrotatable manner with it is described
The first trigger element (21,22) of camshaft (11) connection, the second valve actuation unit (19) have at least one with cannot
The second trigger element (23,24) that the mode of relative rotation is connected with the camshaft (11),
It is characterized in that,
The trigger element (21,22,23,24) intercouples.
2. valve transmission device according to claim 1,
It is characterized in that,
The trigger element (21,22,23,24) is arranged in a manner of mutually having certain phase shift.
3. valve transmission device according to claim 1 or 2,
It is characterized in that,
It is provided with the changer lever (27) being connected in a manner of relatively unrotatable but be axially movable with the camshaft (11), institute
Trigger element (21,22,23,24) is stated to couple with the changer lever.
4. valve transmission device according to claim 3,
It is characterized in that,
The changer lever (27) is directed in the camshaft (11).
5. the valve transmission device according to any one of the claims,
It is characterized in that,
It is provided with the 3rd valve actuation unit (20) with least one 3rd trigger element (25,26), described at least one
Three trigger elements are coupled with the trigger element (21,22,23,24).
6. the valve transmission device according to any one of the claims,
It is characterized in that,
Another valve actuation unit (18', 19', 20') is provided with, another valve actuation unit has with relatively unrotatable
At least one other trigger element (21', 22', 23', 24', 25', 26') that mode is connected with the camshaft (11), should
At least one other trigger element and at least one first trigger element (21,22) and with described at least one second
Trigger element (23,24) decouples.
7. valve transmission device according to claim 3,
It is characterized in that,
It is provided with another changer lever being connected in a manner of relatively unrotatable but be axially movable with the camshaft (11)
(27), the other trigger element (21', 22', 23', 24', 25', 26') is coupled with another changer lever.
8. a kind of internal combustion engine, has the valve transmission device (10) as any one of the claims.
9. internal combustion engine according to claim 8,
It is characterized in that,
It is provided with the in-line arrangement layout of six cylinders.
10. one kind is used for the method for running valve transmission device (10), the valve transmission device has at least one camshaft (11),
The valve transmission device has the first valve actuation unit (18) for being used for manipulating at least one first scavenging air valve (38,39), described
First valve actuation unit be arranged for by the rotary motion of the camshaft (11) be converted into being used for be allocated to it is described at least
The power switched between two different cam followers (40,41) of one the first scavenging air valve (38,39), and the valve is driven
Device has the second valve actuation unit (19) for being used for manipulating at least one second scavenging air valve, and the second valve actuation unit is set
Put for being converted into the rotary motion of the camshaft (11) for being allocated to the two of at least one second scavenging air valve
The power switched between a different cam follower, wherein the first valve actuation unit (18) have it is at least one with cannot phase
The first trigger element (21,22) being connected to the mode of rotation with the camshaft (11), the second valve actuation unit (19)
With at least one the second trigger element (23,24) being connected in a relatively unrotatable manner with the camshaft (11),
It is characterized in that,
The trigger element (21,22,23,24) is manipulated at the same time, and the trigger element (21,22,23,24) triggers what is configured
Successive switching of the valve actuation unit (18,19) between the cam follower (40,41).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015009877.2 | 2015-07-29 | ||
| DE102015009877.2A DE102015009877A1 (en) | 2015-07-29 | 2015-07-29 | Valve train device, internal combustion engine with a valve drive device and method for operating a valve drive device |
| PCT/EP2016/001025 WO2017016625A1 (en) | 2015-07-29 | 2016-06-17 | Valve train mechanism, internal combustion engine comprising a valve train mechanism and method for operating a valve train mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107923276A true CN107923276A (en) | 2018-04-17 |
| CN107923276B CN107923276B (en) | 2020-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680043762.7A Active CN107923276B (en) | 2015-07-29 | 2016-06-17 | Valve gear, internal combustion engine having a valve gear, and method for operating a valve gear |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US10458295B2 (en) |
| CN (1) | CN107923276B (en) |
| DE (1) | DE102015009877A1 (en) |
| WO (1) | WO2017016625A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2543413A (en) * | 2016-09-21 | 2017-04-19 | Daimler Ag | Valve actuating apparatus for an internal combustion engine |
| DE102017009541A1 (en) * | 2017-10-13 | 2019-04-18 | Daimler Ag | Valve drive for an internal combustion engine of a motor vehicle |
| DE102020123820A1 (en) | 2020-09-14 | 2022-03-17 | Bayerische Motoren Werke Aktiengesellschaft | Valve train for an internal combustion engine, in particular a motor vehicle, and internal combustion engine |
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|---|---|---|---|---|
| US20130025554A1 (en) * | 2011-07-27 | 2013-01-31 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Valve drive for internal combustion engines for actuating gas exchange valves |
| DE102011116117A1 (en) * | 2011-10-15 | 2013-04-18 | Daimler Ag | Valve train device for an internal combustion engine |
| CN104160122A (en) * | 2012-03-08 | 2014-11-19 | 戴姆勒股份公司 | Internal combustion engine valve train adjustment device |
| DE102013009757A1 (en) * | 2013-06-11 | 2014-12-11 | Daimler Ag | Valve train device for an internal combustion engine |
| CN104271903A (en) * | 2012-04-28 | 2015-01-07 | 奥迪股份公司 | Valve drive of an internal combustion engine |
| CN105723055A (en) * | 2013-11-13 | 2016-06-29 | 戴姆勒股份公司 | Engine braking device for an internal combustion engine |
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|---|---|---|---|---|
| DE209739C (en) | ||||
| US7392772B2 (en) * | 2004-05-06 | 2008-07-01 | Jacobs Vehicle Systems, Inc. | Primary and offset actuator rocker arms for engine valve actuation |
| JP4165446B2 (en) * | 2004-05-10 | 2008-10-15 | トヨタ自動車株式会社 | Variable valve mechanism for multi-cylinder internal combustion engine |
| DE102014008378A1 (en) * | 2014-06-05 | 2015-12-17 | Daimler Ag | Engine braking device for an internal combustion engine |
-
2015
- 2015-07-29 DE DE102015009877.2A patent/DE102015009877A1/en active Pending
-
2016
- 2016-06-17 US US15/748,008 patent/US10458295B2/en active Active
- 2016-06-17 WO PCT/EP2016/001025 patent/WO2017016625A1/en active Application Filing
- 2016-06-17 CN CN201680043762.7A patent/CN107923276B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130025554A1 (en) * | 2011-07-27 | 2013-01-31 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Valve drive for internal combustion engines for actuating gas exchange valves |
| DE102011116117A1 (en) * | 2011-10-15 | 2013-04-18 | Daimler Ag | Valve train device for an internal combustion engine |
| CN104160122A (en) * | 2012-03-08 | 2014-11-19 | 戴姆勒股份公司 | Internal combustion engine valve train adjustment device |
| CN104271903A (en) * | 2012-04-28 | 2015-01-07 | 奥迪股份公司 | Valve drive of an internal combustion engine |
| DE102013009757A1 (en) * | 2013-06-11 | 2014-12-11 | Daimler Ag | Valve train device for an internal combustion engine |
| CN105723055A (en) * | 2013-11-13 | 2016-06-29 | 戴姆勒股份公司 | Engine braking device for an internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017016625A1 (en) | 2017-02-02 |
| US20190010840A1 (en) | 2019-01-10 |
| US10458295B2 (en) | 2019-10-29 |
| CN107923276B (en) | 2020-06-12 |
| DE102015009877A1 (en) | 2017-02-02 |
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Effective date of registration: 20220509 Address after: German Leinfelden echterdingen Patentee after: Daimler trucks AG Address before: Stuttgart, Germany Patentee before: DAIMLER AG |